Akagi Nyugyo Co., Ltd., the maker behind the Sof' soft serve brand, is set to release "Sof' Iwaizumi Yogurt Flavor" nationwide on Monday, May 18, 2026. The product was developed in collaboration with Iwaizumi Holdings Co., Ltd., and marks the first-ever collaboration item under the Sof' brand.
Iwaizumi Yogurt is a long-selling product originating from Iwaizumi Town in Iwate Prefecture, crafted from locally sourced fresh milk and carefully selected lactic acid bacteria. It is made using a unique low-temperature, long-duration fermentation process that preserves the natural goodness of the ingredients. The yogurt is known for its rich, smooth texture with a distinctive chewiness, as well as a gentle sweetness that highlights the authentic flavor of the milk. It has been cherished by fans of all ages for many years.
The philosophy behind Iwaizumi Yogurt — letting the natural quality of the ingredients shine — closely mirrors Sof's own brand concept of delivering exceptional flavors through carefully chosen ingredients. This shared dedication to ingredient integrity made the collaboration a natural fit.
The new "Sof' Iwaizumi Yogurt Flavor" is a yogurt-flavored ice cream developed with the popular Iwaizumi Yogurt in mind. To recreate the yogurt's characteristic richness and gentle tanginess, the milk fat content is set at 6.4% — notably higher than that of regular yogurt — while the acidity is kept mild. The result is an ice cream that delivers the deep, full-bodied creaminess of milk up front, with a subtle sourness that leaves the palate feeling clean and refreshed.
About Iwaizumi Yogurt
Iwaizumi Yogurt is produced in Iwaizumi Town, Iwate Prefecture, nestled in a region of abundant nature. Unlike conventional yogurts, it undergoes fermentation at lower temperatures over an extended period, giving it a distinctively rich, smooth, and slightly chewy texture. The fresh milk used comes from cows raised with care by local dairy farmers in and around Iwaizumi Town, lending the yogurt its characteristic depth of flavor and gentle sweetness. Made with minimal additives to let the natural quality of the ingredients speak for themselves, Iwaizumi Yogurt has earned a devoted following across generations and remains a long-running favorite.
Product Information
Sof' Iwaizumi Yogurt Flavor
- Suggested Retail Price: 194 yen (tax included)
- Category: Ice Milk
- Volume: 150ml
- Energy: 152kcal
- Release Date: Monday, May 18, 2026
- Sales Area: Nationwide
